Cloudstone Curio + Heritage Druid + Nettle Sentinel

G identity

Commander legal

The 3 combo pieces

What must be in place

You have a nonartifact Elf card in hand that can be cast using {G}{G} or less with enough mana to cast it.

How to execute it

  1. Cast an Elf from your hand by paying its mana cost.
  2. If the Elf was green, Nettle Sentinel triggers, untapping itself.
  3. When the Elf enters the battlefield, Cloudstone Curio triggers.
  4. Holding priority, activate Heritage Druid by tapping it, Nettle Sentinel and another Elf, adding {G}{G}{G}.
  5. Resolve the Cloudstone Curio trigger, returning Heritage Druid from the battlefield to your hand.
  6. Cast Heritage Druid by paying {G}.
  7. Nettle Sentinel triggers, untapping itself.
  8. When Heritage Druid enters the battlefield, Cloudstone Curio triggers, returning the Elf cast in step 1 from the battlefield to your hand.
  9. Repeat.

What the combo produces